NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 209-629 | 6XXX7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| — | 209-631 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| — | 209-648 | 7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TURLOCK | CA |
| — | 209-658 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| — | 209-675 | 4XXX7XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| — | 209-678 | 4XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TURLOCK | CA |
| — | 209-679 | 7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| — | 209-704 | 6XXX7XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| — | 209-712 | 9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LODI | CA |
| — | 209-743 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANGELSCAMP | CA |
| — | 209-756 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| — | 209-761 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| — | 209-765 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| — | 209-777 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| — | 209-815 | 9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| — | 209-861 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| — | 209-873 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| — | 209-902 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| — | 209-914 | 8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TRACY | CA |
| — | 209-915 | 7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| — | 209-917 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LE GRAND | CA |
| — | 209-918 | 8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| — | 209-964 | 0–9 XXXall 10 · 7 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | IONE | CA |
| — | 209-968 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| — | 209-969 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| — | 209-981 | 2XXX3XXX4XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| — | 209-988 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| — | 209-996 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.